Hello, I’m Kodak.
At first, Japanese family vocabulary looks simple. You learn that 母 (haha) means mother, 父 (chichi) means father, and 兄 (ani) means older brother.
Then you hear Japanese people say:
The meaning is only half of the story.
Japanese family terms also show whose family member you are talking about, whether you are speaking to them directly, and how much respect or affection you want to express.
The most important beginner rule
When speaking to an outsider about your own family, use plain terms such as:
母, 父, 兄, 姉, 弟, 妹
When addressing a family member or speaking respectfully about someone else’s family, use forms such as:
お母さん, お父さん, お兄さん, お姉さん, 弟さん, 妹さん
Don’t worry. Start with the situation.
Talking about my older brother: 兄
Calling my older brother: お兄ちゃん / お兄さん
Talking about your older brother: お兄さん
Once you understand that pattern, most Japanese family words become much easier.
How Do You Say “Family” in Japanese?
Hiragana: かぞく
Romaji: kazoku
Meaning: family
私の家族は五人です。
Watashi no kazoku wa gonin desu.
There are five people in my family.
家族と一緒に住んでいます。
Kazoku to issho ni sunde imasu.
I live with my family.
家族を大切にしています。
Kazoku o taisetsu ni shite imasu.
I value my family.
It can refer to the immediate family or the family group more broadly, depending on context.
For relatives in general, Japanese also uses 親戚 (shinseki).
Japanese Family Terms: Quick Reference Chart
Speaking about your own family to outsiders
母 (haha) — my mother
父 (chichi) — my father
両親 (ryōshin) — my parents
兄 (ani) — my older brother
姉 (ane) — my older sister
弟 (otōto) — my younger brother
妹 (imōto) — my younger sister
祖母 (sobo) — my grandmother
祖父 (sofu) — my grandfather
夫 (otto) — my husband
妻 (tsuma) — my wife
息子 (musuko) — my son
娘 (musume) — my daughter
Addressing them or speaking about someone else’s family
お母さん (okaasan) — Mom / your mother
お父さん (otousan) — Dad / your father
ご両親 (goryōshin) — your parents
お兄さん (onii-san) — older brother
お姉さん (onee-san) — older sister
弟さん (otōto-san) — younger brother
妹さん (imōto-san) — younger sister
おばあさん (obaasan) — Grandma / grandmother
おじいさん (ojiisan) — Grandpa / grandfather
ご主人 (goshujin) — your husband
奥さん (okusan) — your wife
息子さん (musuko-san) — your son
娘さん (musume-san) — your daughter
Why Japanese Family Words Change
Japanese often distinguishes between the speaker’s own group and the listener’s or another person’s group.
Your family belongs to your side. When speaking to an outsider, you normally use plain terms for your own relatives. For the other person’s relatives, you use respectful forms.
母・父・兄・姉
↓
plain or neutral formsYour or another person’s side
お母さん・お父さん・お兄さん・お姉さん
↓
respectful forms
No. It is a social-language convention, not a measure of love.
You may call your mother お母さん lovingly at home and still introduce her as 母 to your teacher.
No. Children and adults may say expressions such as うちのお母さん or うちのお兄ちゃん when speaking casually.
The plain forms remain the safest choice in introductions, formal conversation, writing, and textbook-neutral Japanese.
How to Say “Brother” in Japanese
English uses one word, brother. Japanese usually needs to know two things:
2. Are you talking about your brother, someone else’s brother, or speaking to him directly?
兄 (ani) — my older brother
お兄さん (onii-san) — your older brother / polite address
お兄ちゃん (onii-chan) — affectionate “Big Bro”
兄貴 (aniki) — tougher or admiring “big bro”Younger brother
弟 (otōto) — my younger brother
弟さん (otōto-san) — your or someone else’s younger brother
Correct. Japanese normally specifies older or younger.
When the distinction does not matter, you can use broader words such as 兄弟 (kyōdai), but that usually means siblings or brothers as a group rather than one unspecified brother.
兄 (Ani): My Older Brother
Use 兄 when speaking neutrally to an outsider about your own older brother.
兄は大学生です。
Ani wa daigakusei desu.
My older brother is a university student.
兄と映画を見ました。
Ani to eiga o mimashita.
I watched a movie with my older brother.
Not normally in modern everyday speech.
Use his name, nickname, お兄ちゃん, お兄さん, 兄ちゃん, or another form your family uses.
お兄さん (Onii-san): Older Brother or Young Man
お兄さん is the polite or neutral form for another person’s older brother. It can also address an older brother directly.
佐藤さんのお兄さんは医者です。
Satō-san no onii-san wa isha desu.
Sato’s older brother is a doctor.
It can also refer to a young man who is not literally anyone’s brother.
あのお兄さんに聞いてみよう。
Ano onii-san ni kiite miyō.
Let’s ask that young man.
No. It depends on relative age and context, and it can sound overly familiar.
When you know a person’s name or title, that is usually safer.
お兄ちゃん (Onii-chan): Affectionate “Big Bro”
お兄ちゃん sounds warmer, more familiar, and often cuter or more childlike than お兄さん.
お兄ちゃん、遊ぼう！
Onii-chan, asobō!
Big Bro, let’s play!
No. Younger brothers can use it too. The term identifies the older brother, not the speaker’s gender.
Anime made the younger-sister image internationally famous, but real family usage is broader.
Learn more: What Does Onii-chan Mean in Japanese?
兄貴 (Aniki): Tough or Admired “Big Bro”
兄貴 may refer to a real older brother or a respected older-brother-like man.
兄貴、俺も連れていってくれ！
Aniki, ore mo tsurete itte kure!
Bro, take me with you!
It often suggests closeness plus hierarchy and may appear in male groups, crafts, sports, entertainment, gangs, anime, and playful fandom language.
Learn more: What Does Aniki Mean in Japanese?
弟 (Otōto): My Younger Brother
Use 弟 when speaking about your own younger brother.
弟は高校生です。
Otōto wa kōkōsei desu.
My younger brother is a high school student.
Use 弟さん for another person’s younger brother.
弟さんは何歳ですか。
Otōto-san wa nan-sai desu ka?
How old is your younger brother?
Usually you use his name, nickname, or another family-specific form.
Unlike お兄ちゃん, 弟 is mainly a relationship noun rather than a common direct title.
How to Say “Sister” in Japanese
姉 (ane) — my older sister
お姉さん (onee-san) — your older sister / polite address
お姉ちゃん (onee-chan) — affectionate “Big Sis”
姉貴 (aneki) — tougher or admiring “big sis”Younger sister
妹 (imōto) — my younger sister
妹さん (imōto-san) — your or someone else’s younger sister
姉 (Ane): My Older Sister
姉は東京で働いています。
Ane wa Tōkyō de hataraite imasu.
My older sister works in Tokyo.
お姉さん (Onee-san): Older Sister or Young Woman
山本さんのお姉さんは看護師です。
Yamamoto-san no onee-san wa kangoshi desu.
Yamamoto’s older sister is a nurse.
お姉さん can also refer to a young woman, depending on context.
お姉ちゃん (Onee-chan): Affectionate “Big Sis”
お姉ちゃん、宿題を教えて。
Onee-chan, shukudai o oshiete.
Big Sis, help me with my homework.
That is a helpful shortcut, but not a strict rule.
Adults can continue calling their sisters お姉ちゃん. The main difference is familiarity and tone, not only age.
Learn more: Onee-chan and Onee-san Meaning
妹 (Imōto): My Younger Sister
妹は音楽が好きです。
Imōto wa ongaku ga suki desu.
My younger sister likes music.
For someone else’s younger sister, use 妹さん.
妹さんも学生ですか。
Imōto-san mo gakusei desu ka?
Is your younger sister also a student?
How to Say “Sibling” and “Brothers and Sisters” in Japanese
siblings; brothers; brothers and sisters姉妹 (shimai)
sisters兄妹 (keimai / ani-imōto)
older brother and younger sister
姉弟 (shitei / ane-otōto)
older sister and younger brother
兄弟はいますか。
Kyōdai wa imasu ka?
Do you have any siblings?
三人兄弟です。
Sannin kyōdai desu.
We are three siblings.
Yes. In ordinary usage, 兄弟 can function as the general word for siblings, including mixed-gender siblings.
When the exact composition matters, Japanese can specify 兄と妹, 姉と弟, or another combination.
How to Say “Mother” in Japanese
my mother, when speaking to outsidersお母さん (okaasan)
Mom; your mother; someone else’s mother母親 (hahaoya)
mother; female parent as an objective role
ママ (mama)
Mommy / Mama; intimate and casual
おふくろ (ofukuro)
one’s own mother; familiar and traditionally associated especially with adult male speech
お母さん、ありがとう。
Mom, thank you.To an outsider:
母は元気です。
My mother is well.About the listener’s mother:
お母さんはお元気ですか。
Is your mother well?
How to Say “Father” in Japanese
my father, when speaking to outsidersお父さん (otousan)
Dad; your father; someone else’s father父親 (chichioya)
father; male parent as an objective role
パパ (papa)
Daddy / Papa; intimate and casual
おやじ (oyaji)
one’s father; familiar, rough, or traditionally masculine
父は会社員です。
Chichi wa kaishain desu.
My father is an office worker.
お父さん、行ってきます。
Otousan, itte kimasu.
Dad, I’m leaving.
The basic pattern is parallel:
Call him お父さん.
Tell outsiders about him as 父.
Refer respectfully to another person’s father as お父さん.
How to Say “Parents” in Japanese
one’s parents; parents in a neutral referenceご両親 (goryōshin)
your or someone else’s parents; respectful form親 (oya)
parent or parents, depending on context
父母 (fubo)
father and mother; parents, often in formal or written contexts
両親は北海道に住んでいます。
Ryōshin wa Hokkaidō ni sunde imasu.
My parents live in Hokkaido.
ご両親はお元気ですか。
Goryōshin wa ogenki desu ka?
How are your parents?
How to Say “Grandmother” and “Grandfather” in Japanese
祖母 (sobo) — my grandmother, to outsiders
おばあさん (obaasan) — Grandma / someone else’s grandmother
おばあちゃん (obaachan) — affectionate GrandmaGrandfather
祖父 (sofu) — my grandfather, to outsiders
おじいさん (ojiisan) — Grandpa / someone else’s grandfather
おじいちゃん (ojiichan) — affectionate Grandpa
祖母は八十歳です。
Sobo wa hachijussai desu.
My grandmother is eighty years old.
おばあちゃん、元気だった？
Obaachan, genki datta?
Grandma, have you been well?
祖父と釣りに行きました。
Sofu to tsuri ni ikimashita.
I went fishing with my grandfather.
Yes. Context determines whether the person is a grandparent or simply an elderly woman or man.
Be careful when addressing strangers: judging someone’s age with these words can sound rude.
How to Say “Husband” and “Wife” in Japanese
Spouse terms vary greatly by viewpoint, politeness, generation, and personal preference.
夫 (otto) — my husband; neutral standard
主人 (shujin) — my husband; traditional/common, literally connected with “master”
旦那 (danna) — husband; casual
旦那さん (danna-san) — someone else’s husband; casual/respectful
ご主人 (goshujin) — someone else’s husband; respectfulWife
妻 (tsuma) — my wife; neutral standard
家内 (kanai) — my wife; traditional, literally “inside the house”
奥さん (okusan) — someone else’s wife; also used casually for a wife
嫁 (yome) — bride, daughter-in-law, or wife depending on context
夫は料理が好きです。
Otto wa ryōri ga suki desu.
My husband likes cooking.
奥さんはお元気ですか。
Okusan wa ogenki desu ka?
How is your wife?
Because spouse terms reflect changing social values, household roles, generation, and personal preference.
For beginner-neutral speech, 夫 and 妻 are useful when discussing your own spouse.
How to Say “Son” and “Daughter” in Japanese
息子 (musuko) — my son / a son
息子さん (musuko-san) — your or someone else’s sonDaughter
娘 (musume) — my daughter / a daughter
娘さん (musume-san) — your or someone else’s daughter
お嬢さん (ojōsan) — someone else’s daughter / young lady, depending on context
息子は十歳です。
Musuko wa jussai desu.
My son is ten years old.
娘さんは大学生ですか。
Musume-san wa daigakusei desu ka?
Is your daughter a university student?
Japanese Words for Extended Family
伯父・叔父 (oji) — uncle
伯母・叔母 (oba) — aunt
おじさん (ojisan) — uncle / middle-aged man
おばさん (obasan) — aunt / middle-aged woman
いとこ (itoko) — cousin
甥 (oi) — nephew
姪 (mei) — niece
孫 (mago) — grandchild
義理の家族 (giri no kazoku) — in-laws / family by marriage
The kanji can show whether the relative is older or younger than your parent.
伯父・伯母 refer to an older sibling of a parent.
叔父・叔母 refer to a younger sibling of a parent.
The spoken words are still oji and oba.
Ojisan vs Ojiisan and Obasan vs Obaasan
Long vowels are extremely important in these family words.
uncle / middle-aged manおじいさん (ojiisan)
grandfather / elderly manおばさん (obasan)
aunt / middle-aged woman
おばあさん (obaasan)
grandmother / elderly woman
Exactly.
oji-san and ojii-san are different words.
oba-san and obaa-san are also different.
Long vowels are part of Japanese word identity, not optional decoration.
How Japanese People Address Family Members
Japanese family terms often function like names.
Mom, listen.お父さん、起きて。
Dad, wake up.お兄ちゃん、待って。
Big Bro, wait.
お姉ちゃん、手伝って。
Big Sis, help me.
おばあちゃん、大好き。
Grandma, I love you.
Families may also use given names, nicknames, shortened forms, regional terms, or words such as ママ and パパ.
Why Parents Call Themselves Okaasan and Otousan
Parents often speak from the child’s viewpoint and use their family role like a name.
お母さんと一緒に行こう。
Okaasan to issho ni ikō.
Let’s go with Mommy.
お父さんがやってあげる。
Otousan ga yatte ageru.
Daddy will do it for you.
Why Family Members Call Each Other Mom and Dad
Once children are present, family members may use titles based on the youngest child’s viewpoint.
お母さん、お父さんはもう帰った？
Okaasan, otousan wa mō kaetta?
Mom, has Dad come home already?
A husband may call his wife お母さん, and a wife may call her husband お父さん, because they are speaking within their roles as the children’s parents.
Honorifics in Japanese Family Terms
Three common pieces change the tone of family words:
polite or respectful prefix-さん
polite, neutral, and respectful-ちゃん
affectionate, familiar, cute, or childlike
-様 (-sama)
highly respectful, refined, or formal
warm and affectionate Big Sisお姉さん
polite or neutral older sister / young womanお姉様
highly respectful or elegant elder sister
Not mechanically.
Some respectful forms use a prefix, a suffix, or a special established word. Learn common family terms as complete expressions rather than building every form yourself.
Family Words in Anime and Manga
Anime uses family vocabulary to show relationships and personality immediately.
affectionate or dependent younger-sibling tone兄貴
loyal, tough, admiring, or subordinate toneお姉さん
mature, caring, elegant, teasing, or older-sister-like tone
お姉様
refined, worshipful, aristocratic, or dramatic tone
母ちゃん
rough, warm, childlike, or regional “Mom”
母上
historical, samurai-like, formal, or dramatic “Mother”
親父
rough or familiar “old man / Dad”
父上
historical or highly respectful “Father”
Some are ordinary, while others create a strong character voice.
お母さん, お父さん, お兄ちゃん, and お姉ちゃん are common.
母上, 父上, 兄貴, and 姉御 require the right relationship and style.
Natural Family Introduction in Japanese
There are five people in my family.父と母と兄と妹がいます。
I have a father, mother, older brother, and younger sister.父は会社員で、母は教師です。
My father is an office worker, and my mother is a teacher.
兄は大学生です。
My older brother is a university student.
妹は中学生です。
My younger sister is a junior high school student.
How to Ask About Someone’s Family
How many people are in your family?ご兄弟はいますか。
Do you have any siblings?お兄さんは何歳ですか。
How old is your older brother?
妹さんも学生ですか。
Is your younger sister also a student?
ご両親はどちらにお住まいですか。
Where do your parents live?
Not automatically. Family structure, marriage, children, age, death, estrangement, and caregiving can be sensitive.
Learn the vocabulary, but choose questions according to the relationship and situation.
Natural Example Sentences with Japanese Family Terms
家族はみんな元気です。
Kazoku wa minna genki desu.
Everyone in my family is well.
父と母は大阪に住んでいます。
Chichi to haha wa Ōsaka ni sunde imasu.
My father and mother live in Osaka.
兄は私より三歳年上です。
Ani wa watashi yori san-sai toshiue desu.
My older brother is three years older than me.
弟とよくゲームをします。
Otōto to yoku gēmu o shimasu.
I often play video games with my younger brother.
姉は来年結婚します。
Ane wa rainen kekkon shimasu.
My older sister will get married next year.
妹はまだ高校生です。
Imōto wa mada kōkōsei desu.
My younger sister is still a high school student.
祖父母に会いに行きました。
Sofubo ni ai ni ikimashita.
I went to see my grandparents.
夫と娘と三人で暮らしています。
Otto to musume to sannin de kurashite imasu.
I live with my husband and daughter, the three of us.
妻は看護師です。
Tsuma wa kangoshi desu.
My wife is a nurse.
息子さんはおいくつですか。
Musuko-san wa oikutsu desu ka?
How old is your son?
いとこと一緒に旅行しました。
Itoko to issho ni ryokō shimashita.
I traveled with my cousin.
親戚が正月に集まりました。
Shinseki ga shōgatsu ni atsumarimashita.
My relatives gathered for New Year.
Common Beginner Mistakes
Mistake 1: Using Okaasan and Otousan for Your Own Parents in Every Formal Sentence
母は教師で、父は会社員です。Casual family-centered speech:
うちのお母さんは教師で、お父さんは会社員だよ。
Mistake 2: Calling Your Older Brother Ani Directly
兄 is mainly a reference term. Direct address normally uses a name, nickname, お兄ちゃん, or another family form.
Mistake 3: Using Onii-san for a Younger Brother
お兄さん means an older brother or young man. A younger brother is 弟 or respectfully 弟さん.
Mistake 4: Adding San to Your Own Family in a Formal Introduction
My older brother is a university student.△ 私のお兄さんは大学生です。
Understandable, but not the neutral adult form for introducing your own brother.
Mistake 5: Forgetting Older vs Younger
Japanese normally distinguishes 兄 / 弟 and 姉 / 妹. Do not translate all four simply as brother or sister when the age relationship matters.
Mistake 6: Confusing Ojisan and Ojiisan
Ojisan means uncle or middle-aged man. Ojiisan means grandfather or elderly man.
Mistake 7: Assuming Anime Tone Is Neutral
兄貴, 姉御, 母上, and 父上 create distinctive character voices. Understand them before using them.
Mistake 8: Treating Every Family as Traditional
Real families differ. Some use names, nicknames, Mama/Papa, same-sex parent labels, stepfamily terms, or individually chosen forms.
FAQ About Japanese Family Words
What is the Japanese word for family?
家族 (kazoku) is the standard word for family. 親戚 (shinseki) means relative or relatives.
How do you say brother in Japanese?
Use 兄 (ani) for your own older brother, お兄さん (onii-san) for another person’s older brother, and 弟 (otōto) for your own younger brother.
How do you say big brother in Japanese?
お兄ちゃん (onii-chan) is an affectionate “Big Bro.” お兄さん is more polite or neutral, while 兄貴 (aniki) sounds tougher or more admiring.
How do you say younger brother in Japanese?
弟 (otōto) means your own younger brother. 弟さん (otōto-san) respectfully refers to someone else’s younger brother.
How do you say sister in Japanese?
Use 姉 (ane) for your own older sister, お姉さん (onee-san) for another person’s older sister, and 妹 (imōto) for your own younger sister.
What is the difference between ani and onii-san?
Ani is the neutral word for your own older brother when speaking to outsiders. Onii-san is used for another person’s older brother or as a polite form of address.
What is the difference between onii-san and onii-chan?
Onii-san is more polite or neutral. Onii-chan is more affectionate, familiar, cute, or childlike.
What is the difference between ane and onee-san?
Ane is the neutral word for your own older sister when speaking to outsiders. Onee-san is used for another person’s older sister or as polite address.
Why do Japanese people use different words for their own family?
Japanese politeness distinguishes the speaker’s group from another person’s group. Plain terms are normally used for one’s own family, while respectful forms are used for someone else’s family.
Can adults say onii-chan and onee-chan?
Yes. Adults may continue using childhood family forms. The tone depends on family habit and closeness, not only age.
What does kyoudai mean?
兄弟 (kyōdai) means siblings and may include brothers and sisters, despite the literal kanji combination.
How do you say parents in Japanese?
両親 (ryōshin) means one’s parents. ご両親 (goryōshin) is the respectful form for someone else’s parents.
How do you say grandparents in Japanese?
祖父母 (sofubo) means grandparents. Separately, 祖父 is one’s grandfather and 祖母 is one’s grandmother.
How do you say husband and wife in Japanese?
夫 (otto) and 妻 (tsuma) are useful neutral terms for one’s own husband and wife. Terms for someone else’s spouse include ご主人 and 奥さん.
Do Japanese people call strangers brother or sister?
Terms such as お兄さん and お姉さん can refer to young men and women, but the usage depends on age, tone, and context. A name or title is usually safer.
Are Japanese family terms gender-neutral?
Many traditional kinship terms specify gender and relative age. Broader words such as 家族, 親, 子ども, and きょうだい can be used when gender is unnecessary or when a family prefers broader language.
Summary: Japanese Family Terms
家族 (kazoku)● The central rule
Use plain terms for your own family when speaking to outsiders.
Use respectful forms when addressing family members or discussing someone else’s family.● Older brother
兄 = my older brother
お兄さん = your older brother / polite address
お兄ちゃん = affectionate Big Bro
兄貴 = tough or respected big-brother figure
● Younger brother
弟 = my younger brother
弟さん = your younger brother
● Older sister
姉 = my older sister
お姉さん = your older sister / polite address
お姉ちゃん = affectionate Big Sis
● Younger sister
妹 = my younger sister
妹さん = your younger sister
● Parents
母 / 父 = my mother / father to outsiders
お母さん / お父さん = Mom / Dad or someone else’s parents
● Grandparents
祖母 / 祖父 = my grandmother / grandfather
おばあさん / おじいさん = Grandma / Grandpa or someone else’s grandparents
● Best beginner strategy
Memorize each family term together with a situation, not as a single English translation.
When choosing a Japanese family word, ask three questions:
1. Is the person older or younger?
2. Is this my family member or someone else’s?
3. Am I talking about them or speaking directly to them?
Those three questions will lead you to the correct term much more reliably than memorizing one English translation.
References
- The Japan Foundation: Family Terms — distinctions between terms for one’s own family and someone else’s family.
- The Japan Foundation Irodori: Family Vocabulary — family introductions and terms such as 母, 父, 兄, 姉, お母さん, and お父さん.
- Kotobank: 家族 — dictionary definitions of family.
- Kotobank: 兄弟 — meanings including siblings and brother-like relationships.
- Kotobank: お兄さん — meanings covering an older brother and a young man.
- Kotobank: お姉さん — meanings covering an older sister and a young woman.
- Kotobank: お母さん — family-internal and respectful uses.